Never could any of us have imagined that playing video games online could become a proper profession -and a lucrative one at that, but that’s exactly what the incredibly popular live streaming platform Twitch, has made possible.

This is the first of a 4-part series, (see part 1, part 2, part 3), in which we break down the pros and cons of different ways to work with influencers, so you can make the most-informed decision for your brand's influencer marketing campaign.